vasilije_k Thank you it does work right now, I am getting responses on oscilloscope. One more question what are the 4 channels, or rather what are the 4 audio inputs and outputs in order?
giuliomoro vasilije_k Thank you it does work right now, I great. vasilije_k One more question what are the 4 channels, or rather what are the 4 audio inputs and outputs in order? See here: giuliomoro The above should give you 4 ins and 4 outs. Inputs 0 and 2 will be from the Bela on-board codec. Input 1 should be your microphone (can be moved to 3 if L/R is set high instead of low as I suggest above), or you could add another microphone in parallel (with L/R set high) and that should show up on channel 3. Outputs 0 and 2 should be the Bela codec and outputs 1 and 3 are not going anywhere We cannot easily get rid of the extra input, but you should be able to get rid of the extra outputs via: giuliomoro If the above works, you can try using + mcaspConfig.params.outSerializers = {2}; and that should remove the two dummy output channels.